Miniature Rose Plant Named &#39;KORPOT112&#39;

ABSTRACT

A new and distinct variety of miniature rose plant, referred to by its cultivar name, ‘KORpot112’, is described. The new variety forms in abundance on a substantially continuous basis attractive, yellow-colored blossoms. The vegetation is vigorous and the growth habit is compact. Attractive dark green, semi-glossy foliage is formed. Additionally, the new variety is particularly well suited for growing as distinctive ornamentation in the landscape.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Application No.63/294,090, which was filed on Dec. 28, 2021, the contents of which arehereby incorporated by reference for all purposes.

Latin name of genus and species of plant claimed: Rosa hybrida.

Variety denomination: ‘KORpot112’.

STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR

The first offer for sale of the new variety was January 2021 in Germanyand was also shown on Rosa Danica website on January 2021. The firstoffer for sale of the new variety and the use on the Rosa Danica websitewas by the inventor or another who obtained the new variety directly orindirectly from the inventor. No plants of the new variety have beensold in this country or anywhere in the world, nor has any disclosure ofthe new plant been made, more than one year prior the effective filingdate of this application, and such sale or disclosure within one yearwas either derived directly or indirectly from the inventor.

BACKGROUND OF THE INVENTION

The new variety of rose plant of the present invention was created bycontrolled breeding in 2016 at Offenseth-Sparrishoop, Germany byartificial pollination wherein two parents were crossed which previouslyhad been studied in the hope that they would contribute the desiredcharacteristics. The female parent (i.e., the seed parent) of the newvariety was an unnamed seedling (not patented). The male parent (i.e.,the pollen parent) of the new variety was an unnamed seedling (notpatented) resulting from the cross of a different unnamed seedling (notpatented) and the ‘KORpedia’ variety (U.S. Plant Pat. No. 19,638).

The parentage of the new variety can be summarized as follows:

unnamed seedling×(different unnamed seedling×‘KORpedia’)

The seeds resulting from the above pollination were sown and smallplants were obtained which were physically and biologically differentfrom each other. Selective study resulted in the identification of asingle plant of the new variety.

The new variety has been found to undergo asexual propagation at KleinOffenseth-Sparrieshoop, Germany by a number of routes such as vegetativecuttings. Asexual propagation techniques in KleinOffenseth-Sparrieshoop, Germany, such as vegetative cuttings, have shownthat the characteristics of the new variety are homogeneous, stable, andstrictly transmissible by such asexual propagation from one generationto another. Accordingly, the new variety undergoes asexual propagationin a true-to-type manner.

SUMMARY OF THE INVENTION

It was found that the new variety of miniature rose plant of the presentinvention possesses the following combination of characteristics:

(a) forms attractive, yellow-colored blossoms,

(b) exhibits a compact growth habit,

(c) forms vigorous vegetation, and

(d) forms attractive ornamental semi-glossy foliage.

The new variety well meets the needs of the horticultural industry. Itcan be grown to advantage as attractive ornamentation in parks, gardens,public areas, and residential landscapes. Accordingly, it isparticularly well suited for growing in the landscape.

The new variety can be readily distinguished from its ancestors. Morespecifically, the unnamed seedling seed parent displays a lower petalcount compared to the new variety. Additionally, the pollen parent(different unnamed seedling×‘KORpedia’) displays a smaller flower sizecompared to the new variety. Moreover, the new variety can be readilydistinguished from non-parental related similar varieties. For example,the ‘KORpot055’ variety (U.S. Plant Pat. No. 27,246) displays a darkeryellow colored flower and exhibits a less glossy foliage compared to thenew variety.

The new variety has been named the ‘KORpot112’ variety.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph shows, as nearly true as it is reasonablypossible to make the same in a color illustration of this character, atypical specimen of the new variety and blossoms of the new variety. Theillustrated rose plant of the new variety was approximately twelve weeksof age and was grown indoors in a 10.5 cm container on its own roots atOdense, Denmark.

The drawing sheet illustrates a specimen of the plant displaying flowersat varying points of opening.

DETAILED BOTANICAL DESCRIPTION

The chart used in the identification of colors is that of The RoyalHorticultural Society (R.H.S. Colour Chart, 2015 edition). Theterminology which precedes reference to the chart has been added toindicate the corresponding color in more common terms. The descriptionis based on a one-year-old specimen of the new variety, observed duringSeptember, while growing on its own roots in a greenhouse in aone-gallon container in Cochranville, Pa.

-   Botanical classification: Rosa hybrida cultivar KORpot112.-   Commercial classification: Miniature Rose.-   Plant:    -   -   Height.—Approximately up to 36.0 cm.        -   Width.—Approximately up to 30.0 cm.        -   Habit.—Compact.-   Branches:    -   -   Stem color.—Commonly near Green Group 143A.        -   Length.—Main stems: approximately 36.0 cm on average. —            secondary stems: approximately 15.0 cm on average.        -   Texture.—Glabrous.        -   Thorns.—Amount: moderate. — young thorns: length is            approximately 4.0 mm on average; width is approximately 2.0            mm at point of attachment; and color is commonly near Orange            Group 26C.-   Leaflets:    -   -   Number.—3, 5, and 7.        -   Shape.—Ovate; apex is acute; and base is rounded.        -   Arrangement.—Odd-pinnate.        -   Venation pattern.—Reticulate.        -   Margin.—Serrate.        -   Glossiness of upper side.—Semi-glossy.        -   Texture.—Upper surface: smooth. — under surface: smooth.        -   Size.—Terminal leaflet: length is approximately 4.0 cm on            average; width is approximately 2.0 cm on average. — lower            leaflets: length is approximately 2.3 cm on average; width            is approximately 1.5 cm on average. — 5-Leaflet leaf: length            is approximately 8.0 cm on average; width is approximately            6.0 cm on average.-   Foliage:    -   -   Young foliage.—Upper surface color: commonly near Green            Group 137A with indistinguishable venation. — under surface            color: commonly a blend of near Yellow-Green Group 147B and            Greyed-Orange Group 176C with venation near Yellow-Green            Group 146C.        -   Old foliage.—Upper surface color: commonly near Green Group            139B with indistinguishable venation. — under surface color:            commonly near Green Group 138B with venation near Green            Group 139C.        -   Petiole texture.—Upper surface is smooth; under surface is            mostly smooth with sparse prickles. — upper surface color:            commonly near Green Group 137A. — under surface color:            commonly near Green Group 137B.        -   Rachis.—Upper surface color: commonly near Green Group 137A.            — under surface color: commonly near Green Group 137B.        -   Stipules.—Length: approximately 7.0 mm on average. — width:            approximately 2.0 mm on average. — margin: Entire to erose.            — upper surface color: commonly near Green Group 137A. —            lower surface color: commonly near Green Group 138B.

Inflorescence:

-   -   -   Number of flowers.—About 7 blooms on average on a plant at            once.        -   Number of blossoms per stem or in a cluster.—Typically 1 and            2 blooms per stem on average.        -   Peduncle.—Color: commonly near Green Group 138A. — diameter:            approximately 3.0 mm on average. — length: approximately 3.0            cm on average. — surface texture: glabrous. — strength:            strong.        -   Sepals.—Number 6 — upper surface color and texture: commonly            near Green Group 138A, covered in short pubescence. — under            surface color and texture: commonly near Green Group 138A,            puberulent. — size: length is approximately 1.5 cm on            average; width is approximately 1.0 cm on average. — margin:            entire with extension on two or three sepals measuring 7.0            mm in length and 2.0 mm in width. — shape: lanceolate. —            apex: acute to aristate. — base: truncate or flat as it            joins the receptacle.        -   Buds.—Shape: globular. — size: length is approximately 2.0            cm on average; width is approximately 2.0 cm on average. —            color (when opening): commonly near Yellow Group 13A.        -   Flower.—Form: double, cuplike. — profile: flat. — diameter:            approximately 7.0 cm on average. — height: approximately 2.5            cm on average. — duration: on the plant approximately 28            days. — petal color when first and fully opened: upper            surface is commonly near Yellow Group 12A with a basal spot            of near White Group 155B; under surface is commonly near            Yellow Group 3C with basal spot of near White Group 155B. —            petal color when fading: upper and under surfaces are            commonly near White Group 155C with hint of White Group            155A. — petal texture of upper and lower surfaces: glabrous.        -   Fragrance.—Very light sweet scent.        -   Petal.—Number 93 on average. — drop: average for the type. —            length: inner petals are approximately 1.0 cm on average and            outer petals are approximately 2.5 cm on average. — width:            inner petals are approximately 8.0 mm on average and outer            petals are approximately 2.5 cm on average. — overall shape:            broadly obovate. — margin: entire. — apex shape: rounded to            cuspidate. — base shape: rounded to cuneate.        -   Petaloids.—Number commonly 5 per flower. — color upper and            under surfaces: commonly near Yellow Group 13A with a basal            spot of near Yellow Group 13B. — length: approximately 5.0            mm on average. — width: approximately 3.0 mm on average. —            texture: smooth. — margins: variable, entire to erose. —            shape: rounded and mostly curving inward. — apex: round. —            base: cuneate.        -   StamenNumber approximately 80. — anthers: number is            approximately 80; color is commonly near Yellow Group 11C;            length is approximately 1.5 mm on average; and shape is            oval. — filaments: length is approximately 1.5 mm on average            and color is commonly near Green-Yellow Group 1B.        -   Pistils.—Arrangement: separate and free. — number:            approximately 96. — style: length is approximately 5.0 mm            and color is commonly near Green-Yellow Group 1B at the            base, transitioning to near Red Group 45A at the apex. —            stigma: diameter is commonly less than 1.0 mm; shape is fan            shaped; and color is commonly near Green-Yellow Group 1B.        -   Receptacle.—Diameter: approximately 8.0 mm on average. —            shape: urn shaped. — color: commonly near Yellow-Green Group            144A. — surface texture: smooth.        -   Pollen.—None observed.        -   Hips/seed.—None observed.

-   Development:    -   -   Vegetation.—Dark green, vigorous, and strong.        -   Blossoming.—Abundant and substantially continuous.        -   Resistance to diseases.—Good resistance for powdery mildew            (Sphaerotheca pannosa) disease under normal greenhouse            growing conditions in Cochranville, Pa.        -   Hardiness.—Unknown.

The new ‘KORpot112’ variety has not been observed under all possibleenvironmental conditions to date. Accordingly, it is possible that thephenotypic expression may vary somewhat with changes in light intensityand duration, cultural practices, and other environmental conditions.

I claim:
 1. A new and distinct variety of miniature rose plant named‘KORpot112’ characterized by the following combination ofcharacteristics: (a) forms attractive, yellow-colored blossoms, (b)exhibits a compact growth habit, (c) forms vigorous vegetation, and (d)forms attractive ornamental semi-glossy foliage; substantially as hereinshown and described.